Network equipment

Abstract

The utility model discloses network equipment, and relates to the technical field of antennas. The utility model aims to reduce the size of network equipment. According to the specific scheme, the network equipment comprises a shell, a single board, a conductive support, an antenna and an electric connecting piece. The single board is located in the shell. The conductive support is used for supporting the shell, and the conductive support is electrically isolated from the shell. The conductive support is electrically connected with the single board through the electric connecting piece. The antenna comprises a feed part and a radiator, and the feed part is used for feeding the radiator. The conductive support is used as the radiator, and the electric connector is used as the feed part. The conductive support for supporting the shell serves as a radiator of the antenna, and the performance of the antenna can be improved under the condition that the size of the whole machine is not increased. The performance of the antenna does not change along with the change of the size of the single board, and the antenna has universality. The network equipment can be a router, and can be applied to scenes such as a fiber-to-room scene and the like.

Description

Technical Field

[0001] Embodiments of the present application relate to the technical field of antennas, and particularly to a network device. Background Art

[0002] With the continuous evolution and upgrade of network systems, consumers' requirements for network systems have also increased accordingly. For example, consumers hope that network devices in the network system can be continuously miniaturized.

[0003] Therefore, reducing the volume of network devices to miniaturize them is a problem that current network devices need to solve. Summary of the Utility Model

[0004] The present application provides a network device, aiming to reduce the volume of the network device.

[0005] To achieve the above object, the present application adopts the following technical solutions.

[0006] In a first aspect, the present application provides a network device. The network device includes a housing, a single board, a conductive bracket, an antenna, and an electrical connector. The single board is located inside the housing. The conductive bracket is used to support the housing, and the conductive bracket is electrically isolated from the housing. The conductive bracket is electrically connected to the single board through the electrical connector. The antenna includes a feeding part and a radiator, and the feeding part is used to feed the radiator. The conductive bracket serves as the radiator, and the electrical connector serves as the feeding part.

[0007] In this way, the conductive bracket has the function of supporting the housing, and the conductive bracket also has the function of serving as the radiator of the antenna. Reusing the conductive bracket in the network device is beneficial to reducing the volume of the network device. In addition, it is also beneficial to reducing the number of components of the network device and miniaturizing the network device.

[0008] In combination with the first aspect, in some realizable ways, the single board includes a conductive layer, and the minimum distance from the conductive bracket to the conductive layer is greater than or equal to 2 mm.

[0009] In this way, the distance between the conductive bracket and the conductive layer is small, and the layout of the single board and the conductive bracket is compact, which is beneficial to the miniaturization of the network device. At the same time, since the minimum distance is greater than or equal to 2 mm, the conductive layer in the single board has little influence on the electromagnetic waves radiated by the conductive bracket serving as the radiator.

[0010] In combination with the first aspect, in some realizable ways, the minimum distance from the conductive bracket to the conductive layer is greater than or equal to 5 mm. In this way, the influence of the conductive layer in the single board on the electromagnetic waves radiated by the conductive bracket serving as the radiator can be further reduced.

[0011] In combination with the first aspect, in some realizable ways, the housing is an insulating housing.

[0012] In this way, the insulating housing has less interference with the electromagnetic waves radiated by the conductive bracket acting as a radiator. The housing and the conductive bracket can be directly connected or in contact, or electrical isolation between the housing and the conductive bracket can be achieved.

[0013] Combined with the first aspect, in some implementable ways, the housing includes a conductive part, and the minimum distance from the conductive bracket to the conductive part is greater than or equal to 2 mm.

[0014] In this way, even if the housing includes a conductive part and the distance between the conductive bracket and the conductive part is small, the housing and the conductive bracket are compactly arranged. At the same time, since the minimum distance is greater than or equal to 2 mm, the influence of the housing on the electromagnetic waves radiated by the conductive bracket acting as a radiator is small, and the influence on the radiation efficiency is small.

[0015] Combined with the first aspect, in some implementable ways, the electrical connector is an elastic part, and the conductive bracket is elastically connected to the single board through the elastic part.

[0016] In this way, during the process of assembling the conductive bracket, the single board and the electrical connector, the elastic connection increases the allowable assembly error between the conductive bracket and the single board, reduces the requirements for the manufacturing precision of the conductive bracket and the single board, reduces the manufacturing cost of the conductive bracket and the single board, and can also reduce the assembly difficulty of the conductive bracket and the single board.

[0017] Combined with the first aspect, in some implementable ways, the conductive bracket is a long-strip structure, and the electrical connector is electrically connected to one end of the conductive bracket along the length direction of the conductive bracket.

[0018] In this way, compared with the connection in the middle of the length direction of the electrical connector and the conductive bracket, when the electrical connector is connected to one end of the length direction of the conductive bracket, the antenna can make full use of the electrical length of the conductive bracket. It is beneficial to reduce the mechanical length of the conductive bracket and reduce the volume of the network device.

[0019] Combined with the first aspect, in some implementable ways, the network device further includes a solder layer, and the electrical connector is connected to the single board through the solder layer.

[0020] In this way, the connection performance between the single board and the electrical connector is stable.

[0021] Combined with the first aspect, in some implementable ways, the network device further includes: a connector. The conductive bracket is connected to the housing through the connector.

[0022] In this way, the conductive bracket supports the housing through the connector, and the connector is connected to the housing, making the stability between the conductive bracket and the housing better.

[0023] Combined with the first aspect, in some implementable ways, the connector is a conductive structure, or the connector is an insulating structure.

[0024] In the embodiment where the connecting member is a conductive structure, since the conductive structure has electrical conductivity, the conductive structure can be used as part of an antenna, which can increase the electrical length and reduce the length of the conductive support. This increases the compactness of the conductive support and the housing, and reduces the volume of the network device.

[0025] In the embodiment where the connecting member is an insulating structure, the housing is a conductive housing or an insulating housing, and both the conductive support and the housing can achieve electrical isolation. The insulating structure realizes the connection between the conductive support and the housing, and also electrically isolates the conductive support and the housing.

[0026] In combination with the first aspect, in some realizable ways, the antenna is used to radiate electromagnetic waves in a first frequency band and also used to radiate electromagnetic waves in a second frequency band. The minimum frequency of the second frequency band is greater than the maximum frequency of the first frequency band.

[0027] In this way, the network device integrates antennas for both frequency bands on the antenna, increasing the integration degree of the network device, which is beneficial to reducing the volume of the network device.

[0028] In combination with the first aspect, in some realizable ways, the network device is a wireless local area network device.

[0029] In this way, the wireless local area network device has the advantages of high integration degree and small volume. Description of the Drawings

[0030] Figure 1 It is a schematic structural diagram of a communication system.

[0031] Figure 2 It is a schematic structural diagram of the network device provided by the embodiment of the present application.

[0032] Figure 3 It is a schematic exploded structural diagram of the network device provided by the embodiment of the present application.

[0033] Figure 4 It is a schematic structural diagram of a conductive support and a housing provided by the embodiment of the present application.

[0034] Figure 5 It is a schematic structural diagram of a single board and a conductive support provided by the embodiment of the present application.

[0035] Figure 6 It is a schematic structural diagram of a single board, an electrical connecting member, a conductive support and a housing provided by the embodiment of the present application.

[0036] Figure 7 It is a schematic structural diagram of an electrical connecting member provided by the embodiment of the present application.

[0037] Figure 8 It is an S-parameter diagram of the network device provided by the embodiment of the present application.

[0038] Figure 9 It is the antenna radiation pattern of the network device within the 2.45 GHz frequency band.

[0039] Figure 10 It is the antenna radiation pattern of the network device within the 5.5 GHz frequency band.

[0040] In the figure: 100 - network device; 110 - housing; 120 - conductive bracket; 131 - dielectric layer; 132 - conductive layer; 130 - single board; 150 - antenna; 112 - insulating part; 111 - conductive part; 151 - tuning circuit; 140 - electrical connector; 141 - base; 142 - elastic piece; 160 - connector; 133 - solder layer. Specific embodiments

[0041] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings.

[0042] Hereinafter, terms such as "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0043] In addition, in the present application, orientation terms such as "upper" and "lower" are defined relative to the orientation of the components shown in the drawings. It should be understood that these directional terms are relative concepts, which are used for relative description and clarification and may change accordingly with the change of the orientation of the components placed in the drawings.

[0044] Antenna return loss: It can be understood as the ratio of the signal power reflected back to the antenna port through the antenna circuit to the transmitting power of the antenna port. The smaller the reflected signal, the larger the signal radiated into space through the antenna, and the higher the radiation efficiency of the antenna. The larger the reflected signal, the smaller the signal radiated into space through the antenna, and the lower the radiation efficiency of the antenna.

[0045] The antenna return loss can be represented by the S11 parameter, and S11 is one of the S parameters. S11 represents the reflection coefficient, and this parameter can characterize the quality of the antenna transmitting efficiency.

[0046] In some embodiments, the S11 graph can be understood as a schematic diagram for representing the resonance generated by the antenna. In some embodiments, the resonance shown in the S11 graph in the part less than -4 dB can be understood as the resonance frequency range generated by the antenna. The S11 parameter is usually negative. The smaller the S11 parameter, the smaller the antenna return loss, the smaller the energy reflected back by the antenna itself, that is, the more energy actually enters the antenna, and the higher the system efficiency of the antenna; the larger the S11 parameter, the larger the antenna return loss, and the lower the system efficiency of the antenna.

[0047] Communication frequency band / operating frequency band: No matter what type of antenna, it always operates within a certain frequency range (frequency band width). For example, an antenna supporting the B40 frequency band has an operating frequency band including frequencies within the range of 2300 MHz to 2400 MHz, or in other words, the operating frequency band of this antenna includes the B40 frequency band.

[0048] The resonance frequency range or resonance frequency band can be the same as or partially overlap with the operating frequency band. In one embodiment, one or more resonance frequency bands of the antenna can cover one or more operating frequency bands of the antenna.

[0049] It should be noted that in engineering, generally, the S11 value of -4 dB is used as a standard. When the S11 value of the antenna is less than -4 dB, it can be considered that the antenna can work normally, or it can be considered that the transmitting efficiency of the antenna is good. It should be understood that in engineering, generally, the S11 value of -6 dB can also be used as a standard. When the S11 value of the antenna is less than -6 dB, it can be considered that the antenna can work normally, or it can be considered that the transmitting efficiency of the antenna is good.

[0050] Coupling: It can be understood as direct coupling or indirect coupling. "Coupling connection" can be understood as direct coupling connection and / or indirect coupling connection. Direct coupling can also be called "electrical connection", which is understood as the physical contact and electrical conduction of components; it can also be understood as the form of connection between different components in a circuit structure through an entity line that can transmit electrical signals such as a printed circuit board (PCB), copper foil or wire; "indirect coupling" can be understood as the electrical conduction of two conductors in a non-contact manner through space. In one embodiment, indirect coupling can also be called capacitive coupling. For example, signal transmission is achieved by forming an equivalent capacitance through the coupling between the gaps between two conductive parts.

[0051] Antenna pattern: Also known as the radiation pattern. It refers to the graph of the relative field strength (normalized modulus value) of the antenna radiation field changing with direction at a certain distance from the low-frequency antenna. Usually, it is represented by two mutually perpendicular plane patterns passing through the maximum radiation direction of the antenna.

[0052] An antenna pattern usually has multiple radiation beams. The radiation beam with the maximum radiation intensity is called the main lobe, and the remaining radiation beams are called side lobes or minor lobes. Among the side lobes, the side lobe in the direction opposite to the main lobe is also called the back lobe.

[0053] dB: That is, decibel, which is a logarithmic concept with base 10. Decibels are only used to evaluate the proportional relationship between one physical quantity and another physical quantity, and it itself has no physical dimension. When the ratio between two quantities increases by a factor of 10, their difference can be expressed as 10 decibels. For example: A = "100", B = "10", C = "5", D = "1", then, A / D = 20dB; B / D = 10dB; C / D = 7dB; B / C = 3dB. That is to say, a difference of 10 decibels between two quantities means a difference of 10 times, a difference of 20 decibels means a difference of 100 times, and so on. A difference of 3dB means a difference of 2 times between the two quantities.

[0054] Operating bandwidth: The operating bandwidth of an antenna element refers to the frequency range in which it can work effectively. In engineering, the frequency band where the S11 parameter is less than -10dB or less than -5dB is usually referred to as the operating bandwidth.

[0055] Radiator, or antenna element: It is a device in the antenna used to receive / transmit electromagnetic wave radiation. In some cases, "antenna" is narrowly understood as the radiator, which converts the guided wave energy from the transmitter into radio waves, or converts radio waves into guided wave energy, for radiating and receiving radio waves. The modulated high-frequency current energy (or guided wave energy) generated by the transmitter is transmitted through the feeder to the transmitting radiator, and through the radiator, it is converted into electromagnetic wave energy of a certain polarization and radiated in the required direction. The receiving radiator converts the electromagnetic wave energy of a certain polarization from a specific direction in space back into the modulated high-frequency current energy, and transmits it through the feeder to the input end of the receiver.

[0056] The radiator (or antenna element) can include conductors with specific shapes and sizes, such as linear or sheet-like, etc., and the present application does not limit the specific shape.

[0057] Feeding part or feeding end is the combination of all components of the antenna for the purpose of receiving and transmitting radio frequency waves. In the case of a receiving antenna, the feeding part can be considered as the part of the antenna from the first amplifier to the front-end transmitter. In a transmitting antenna, the feeding part can be regarded as the part after the last power amplifier.

[0058] Figure 1 It is a schematic structural diagram of a communication system. The communication system includes one or more network devices 100, and the network devices 100 are used to communicate with the user's terminal.

[0059] A terminal can also be referred to as a terminal device, user equipment (UE), mobile station (MS), mobile terminal (MT), or terminal unit (STA), etc. In some embodiments, the terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a personal communication service (PCS) phone, a desktop computer, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in a smart home, etc.

[0060] The network device 100 can be a wireless local area network (WLAN) device, such as a router or a switch, etc. The network device 100 can also be a broadband network gateway (BNG) with optical communication function or a broadband remote access server (BRAS), etc.

[0061] The network device 100 can also be a device with wireless access function, such as a TV, a Bluetooth speaker, etc.

[0062] The terminal can access the server by using the network device 100. As Figure 1 shown in Room 1, the user can use the terminal to establish a communication connection with the network device 100 by using wireless local area network technology, so that the terminal can send data packets to the server. Figure 1 The same applies to Room 2. Exemplarily, the network device 100 communicates with each terminal through WLAN, and the network devices 100 are interconnected by optical fibers.

[0063] In some possible cases, the terminal can also use optical communication technology to establish a communication connection with a radio access network (RAN) ( Figure 1 not shown in the figure) to access the server.

[0064] The network device 100 is connected to the server wirelessly or by wire. The embodiments of the present application do not limit the number of terminal devices, network devices 100 and servers included in this optical communication network.

[0065] Exemplarily, the present application can be applied to scenarios such as Fiber to the Room (FTTR) or optical network termination (ONT).

[0066] Taking the whole-house optical fiber scenario as an example, this embodiment illustrates the bandwidth allocation method for the optical communication network provided by the present application. The whole-house optical fiber scenario can be implemented through FTTR technology. FTTR refers to a networking technology that replaces network cables with optical fibers, lays optical fibers to each room, and realizes interconnection with the home gateway by deploying optical network device 100, combined with wireless communication to ensure full-house network coverage.

[0067] In the embodiment where the present application is applied to Fiber to the Room, the aforementioned network device 100 can be a Fiber to the Room access device. In the embodiment where the present application is applied to an optical network termination, the aforementioned network device 100 can be a device in the optical network termination.

[0068] Figure 2 It is a schematic structural diagram of the network device 100 provided by the embodiment of the present application. Please refer to Figure 2 , the network device 100 includes a housing 110 and a conductive bracket 120. The conductive bracket 120 is located outside the housing 110. The conductive bracket 120 is used to support the housing 110, and the conductive bracket 120 is electrically isolated from the housing 110.

[0069] In the embodiment of the present application, electrical isolation means that there is no electrical conduction between the two, for example, they are not connected through a conductor, or one of the two electrically isolated components is an insulating structure. The electrical isolation between the conductive bracket 120 and the housing 110 means that there is no electrical conduction between the conductive bracket 120 and the housing 110. For example, the conductive bracket 120 and the housing 110 are not electrically connected through a conductor, and the conductive bracket 120 and the housing 110 can be physically connected through a non-conductive structure.

[0070] Figure 3 It is an exploded structural diagram of the network device 100 provided by the embodiment of the present application. Please refer to Figure 3 , the network device 100 further includes a single board 130 and an electrical connector 140. The single board 130 is located inside the housing 110, and the conductive bracket 120 is electrically connected to the single board 130 through the electrical connector 140.

[0071] In the embodiment of the present application, the network device 100 further includes an antenna 150. The antenna 150 includes a feeding part and a radiator, and the feeding part is used to feed the radiator. Among them, the conductive bracket 120 serves as the radiator, and the electrical connector 140 serves as the feeding part.

[0072] Thus, the conductive support 120 serves to support the housing 110 and also serves as a radiator of the antenna 150. The network device 100 multiplexes the conductive support 120, which is conducive to reducing the volume of the network device 100. Additionally, it is also conducive to reducing the number of components of the network device 100, making the network device 100 miniaturized.

[0073] In some embodiments, the conductive support 120 is located outside the housing 110, and the housing 110 has a relatively small shielding effect on the electromagnetic waves radiated by the conductive support 120. This is conducive to improving the radiation efficiency of the antenna 150.

[0074] A cavity is provided inside the housing 110, and the single board 130 is located inside the cavity. According to requirements, components such as a battery, a reinforcing rib, an indicator light, etc. can also be provided inside the cavity, and the embodiments of the present application do not limit this.

[0075] The embodiments of the present application do not limit the shape of the housing 110. Exemplarily, the housing 110 can be in the shape of a square shell, a circular shell, or an irregular shell, etc. According to aesthetic or strength requirements, grooves, protrusions, or hollow structures, etc. can be provided on the housing 110.

[0076] In some embodiments of the present application, the housing 110 can be an integrally formed part. In some embodiments of the present application, the housing 110 can be formed by splicing multiple split structures, and the embodiments of the present application do not limit this.

[0077] In some embodiments of the present application, the housing 110 is an insulating housing. Thus, the insulating housing has relatively little interference with the electromagnetic waves radiated by the conductive support 120 serving as a radiator. The housing 110 and the conductive support 120 can be directly connected or in contact, and electrical isolation between the housing 110 and the conductive support 120 can also be achieved.

[0078] For example, the minimum distance between the insulating housing and the conductive support 120 can be 0. This is conducive to improving the compactness of the housing 110 and the conductive support 120 and is conducive to the miniaturization of the network device 100.

[0079] Exemplarily, the material of the insulating housing can be insulating plastic or insulating rubber, etc.

[0080] In the embodiments of the present application, the housing 110 can be a non-insulating housing.

[0081] Figure 4 This is a schematic structural diagram of the conductive support 120 and the housing 110 provided by the embodiments of the present application. Please refer to Figure 4 , the housing 110 includes a conductive part 111, and the conductive part 111 has electrical conductivity. The conductive support 120 and the conductive part 111 are electrically isolated. The minimum distance d1 from the conductive support 120 to the conductive part 111 is greater than or equal to 2 mm.

[0082] Thus, even if the housing 110 includes a conductive portion 111, the distance between the conductive bracket 120 and the conductive portion 111 is small, and the layout of the housing 110 and the conductive bracket 120 is compact. Also, because the minimum distance d1 is greater than or equal to 2 mm, the influence of the housing 110 on the electromagnetic waves radiated by the conductive bracket 120 as a radiator is small, and the influence on the radiation efficiency is small.

[0083] In some embodiments, the minimum distance d1 from the conductive bracket 120 to the conductive portion 111 is greater than or equal to 5 mm. Thus, the influence of the conductive portion 111 on the electromagnetic waves radiated by the conductive bracket 120 as a radiator is further reduced, the influence of the conductive portion 111 on the radiation efficiency of the antenna is further reduced, and the performance of the antenna is optimized.

[0084] For example, the minimum distance d1 from the conductive bracket 120 to the conductive portion 111 can be: 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 15 mm, 18 mm, etc.

[0085] Exemplarily, the material of the conductive portion 111 can include aluminum alloy, stainless steel, titanium, nickel, aluminum, copper, etc. The material selection of the housing 110 can be enriched, and the performance of the housing 110 can be optimized in terms of aesthetics or structural strength.

[0086] Figure 4 In an example, the housing 110 may further include an insulating portion 112, and the insulating portion 112 is connected to the conductive portion 111.

[0087] The insulating portion 112 and the conductive portion 111 can be connected, for example, by a solder layer, a buckle, or an adhesive layer. The housing 110 is formed by splicing the insulating portion 112 and the conductive portion 111, and the housing 110 can be set according to performance requirements such as aesthetics or structural strength.

[0088] Figure 4 In an example, the insulating portion 112 is closer to the conductive bracket 120 than the conductive portion 111. Thus, the influence of the conductive portion 111 on the electromagnetic waves radiated by the conductive bracket 120 as a radiator is small, and the influence on the radiation efficiency is small.

[0089] In some embodiments, the insulating portion 112 is directly connected to or in contact with the conductive bracket 120. Thus, the conductive bracket 120 and the conductive portion 111 are electrically isolated. The space between the housing 110 and the conductive bracket 120 is more compact, which is beneficial to the miniaturization of the network device.

[0090] In some embodiments of the present application, the insulating portion 112 is farther from the conductive bracket 120 than the conductive portion 111. When the minimum distance d1 from the conductive bracket 120 to the conductive portion 111 is greater than or equal to 2 mm, the influence of the conductive portion 111 on the electromagnetic waves radiated by the conductive bracket 120 as a radiator is small.

[0091] It is understandable that the embodiments of the present application do not limit the relative positional relationship between the insulating part 112 and the conductive part 111. For example, one end of the insulating part 112 and one end of the conductive part 111 are both arranged close to the conductive bracket 120. In other words, the minimum distance from the conductive bracket 120 to the conductive part 111 is close to the minimum distance from the conductive bracket 120 to the insulating part 112.

[0092] The embodiments of the present application do not limit the material of the insulating part 112. The material of the insulating part 112 can be, for example, insulating plastic or insulating rubber, etc.

[0093] In some embodiments of the present application, the insulating part 112 is not necessary, and the housing 110 is a conductive housing. When the minimum distance from the conductive bracket 120 to the conductive housing is greater than or equal to 2 mm, the influence of the conductive housing on the electromagnetic waves radiated by the conductive bracket 120 as a radiator is relatively small.

[0094] The embodiments of the present application do not limit the shape of the conductive bracket 120. Exemplarily, the conductive bracket 120 can be a strip-shaped structure, a curved structure, or an annular structure, etc.

[0095] In some embodiments, according to the needs of aesthetics or structural strength, structures such as hollow-outs and ribs can be provided on the conductive bracket 120.

[0096] In the embodiments of the present application, the conductive bracket 120 and the housing 110 can have various connection methods to enable the conductive bracket 120 to support the housing 110.

[0097] Figure 4 In the example of, the network device 100 further includes: a connecting member 160, and the conductive bracket 120 is connected to the housing 110 through the connecting member 160. In this way, the conductive bracket 120 supports the housing 110 through the connecting member 160, and the connecting member 160 is connected to the housing 110, making the stability between the conductive bracket 120 and the housing 110 better.

[0098] In some embodiments of the present application, the number of the connecting members 160 can be one, two or more. In the embodiments where there are multiple connecting members 160, there are multiple force points between the conductive bracket 120 and the housing 110, increasing the stability between the conductive bracket 120 and the housing 110.

[0099] The embodiments of the present application do not limit the structure of the connecting member 160. In some embodiments, the connecting member 160 is an insulating structure. In this way, the conductive bracket 120 is connected to the housing 110 through the insulating structure. The housing 110 is a conductive housing or an insulating housing, and both the conductive bracket 120 and the housing 110 can achieve electrical isolation. The insulating structure realizes the connection between the conductive bracket 120 and the housing 110, and the insulating structure also electrically isolates the conductive bracket 120 and the housing 110.

[0100] Exemplarily, the material of the insulating structure can be, for example, insulating plastic or insulating rubber, etc. The insulating structure and the conductive bracket 120 can be connected through an adhesive layer or a welding layer, and the insulating structure and the housing 110 can be connected through an adhesive layer or a welding layer.

[0101] In the embodiment where the housing 110 is an insulating housing, the insulating structure and the housing 110 can be integrally formed. In this way, the connection performance between the connecting member 160 and the housing 110 can be improved, and the structural strength of the network device 100 can be optimized.

[0102] Alternatively, in the embodiment where the housing 110 includes an insulating portion 112, the insulating structure and the insulating portion 112 can be integrally formed. Similarly, the connection performance between the connecting member 160 and the housing 110 can be improved, and the structural strength of the network device 100 can be optimized.

[0103] In some embodiments of the present application, the connecting member 160 is a conductive structure. The conductive bracket 120 is connected to the housing 110 through the conductive structure.

[0104] When the electrical isolation between the conductive bracket 120 and the housing 110 is satisfied, the connecting member 160 of the conductive structure has less influence on the conductive bracket 120 as a radiator. In addition, the conductive structure can increase the stability of the conductive bracket 120 and the housing 110. In addition, due to the conductive property of the conductive structure, the conductive structure can be a part of the antenna 150, which can increase the electrical length and reduce the length of the conductive bracket 120. The compactness of the conductive bracket 120 and the housing 110 is increased, and the volume of the network device 100 is reduced.

[0105] In some embodiments of the present application, the conductive bracket 120 and the conductive structure are integrally formed. In this way, the structural strength between the conductive bracket 120 and the conductive structure is relatively high.

[0106] In the embodiment where the housing 110 includes an insulating portion 112 and a conductive portion 111, the conductive structure and the insulating portion 112 are connected through an adhesive layer or a welding layer. In this way, electrical isolation between the conductive bracket 120 and the housing 110 can be achieved.

[0107] In some embodiments of the present application, the connecting member 160 may be a screwed member, such as a bolt, a screw, etc. In some embodiments, the connecting member 160 may be a snap or an adhesive layer, etc., and the embodiments of the present application do not limit this.

[0108] It can be understood that in some embodiments of the present application, the connecting member 160 is not necessary, and the network device 100 may not be provided with the connecting member 160. For example, the conductive bracket 120 abuts against the housing 110, and the conductive bracket 120 supports the housing 110 through the abutting position. In some embodiments, the conductive bracket 120 and the housing 110 are in surface contact, increasing the contact area between the conductive bracket 120 and the housing 110, which is beneficial to improving the supporting performance of the conductive bracket 120 for the housing 110.

[0109] Figure 4 In the example of, the conductive bracket 120 is a ring structure, and the ring structure is adjacent to the head and the tail.

[0110] The material of the conductive bracket 120 includes a conductive material, and the conductive material includes, for example, aluminum alloy, stainless steel, titanium, nickel, aluminum or copper, etc. According to the aesthetic requirements, a color coating or the like may be provided on a part of the surface or the entire surface of the conductive bracket 120.

[0111] Figure 5 is a schematic structural diagram of the single board 130 and the conductive bracket 120 provided by the embodiments of the present application. Please refer to Figure 5 , the single board 130 and the conductive bracket 120 are connected.

[0112] The single board 130 can also be called a main board. The single board 130 may include a dielectric layer 131 and a conductive layer 132, and the dielectric layer 131 and the conductive layer 132 are stacked.

[0113] Electronic components are carried on the single board 130. For example, a radio frequency chip or the like is carried on the single board 130. The conductive layer 132 can be used for the electronic components carried on the single board 130 to be grounded, and can also be used for other components to be grounded. For example, a bracket antenna, a frame antenna, etc., and the conductive layer 132 can be called a floor, or a ground plane, or a ground layer. In some embodiments, the conductive layer 132 can be formed by etching metal on the surface of the dielectric layer 131.

[0114] Exemplarily, the dielectric layer 131 can adopt a flame retardant material (FR-4) dielectric layer, a Rogers dielectric layer, or a mixed dielectric layer of Rogers and FR-4.

[0115] It can be understood that the single board 130 may include one or more dielectric layers 131, the single board 130 may include one or more conductive layers 132, and one dielectric layer 131 is provided between adjacent two conductive layers 132.

[0116] Exemplarily, the antenna 150 further includes a tuning circuit 151, which is disposed on the single board 130. The tuning circuit 151 is electrically connected to the conductive bracket 120 through an electrical connector 140. The conductive layer 132 includes the tuning circuit 151, and the electrical signal output by the tuning circuit 151 is fed through the electrical connector 140.

[0117] In some embodiments, the tuning circuit 151 may also be referred to as a matching circuit.

[0118] In some embodiments of the present application, the minimum distance d2 from the conductive bracket 120 to the conductive layer 132 is greater than or equal to 2 mm. In this way, the distance between the conductive bracket 120 and the conductive layer 132 is small, and the layout of the single board 130 and the conductive bracket 120 is compact, which is beneficial to the miniaturization of the network device. In addition, because the minimum distance d2 is greater than or equal to 2 mm, the influence of the conductive layer 132 in the single board 130 on the electromagnetic wave radiated by the conductive bracket 120 as a radiator is small.

[0119] In some embodiments of the present application, the minimum distance d2 from the conductive bracket 120 to the conductive layer 132 is greater than or equal to 5 mm, which can further reduce the influence of the conductive layer 132 in the single board 130 on the electromagnetic wave radiated by the conductive bracket 120 as a radiator.

[0120] Exemplarily, the minimum distance d2 from the conductive bracket 120 to the conductive layer 132 may be: 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 15 mm, 18 mm, etc.

[0121] The embodiments of the present application do not limit the minimum distance from the dielectric layer 131 in the single board 130 to the conductive bracket 120. The minimum distance from the dielectric layer 131 in the single board 130 to the conductive bracket 120 may be 0.

[0122] As described above, the electrical connector 140 serves as the feeding part of the antenna 150, and the electrical connector 140 is also connected to the conductive bracket 120 and the single board 130.

[0123] In some embodiments of the present application, the electrical connector 140 is an elastic member, and the conductive bracket 120 and the single board 130 are elastically connected through the elastic member.

[0124] In this way, during the process of assembling the conductive bracket 120, the single board 130 and the electrical connector 140, the elastic connection increases the allowable assembly error between the conductive bracket 120 and the single board 130, reduces the requirements for the manufacturing precision of the conductive bracket 120 and the single board 130, reduces the manufacturing cost of the conductive bracket 120 and the single board 130, and can also reduce the assembly difficulty of the conductive bracket 120 and the single board 130.

[0125] Figure 6Schematic diagram of the single board 130, electrical connector 140, conductive bracket 120, and housing 110 provided by the embodiments of the present application. Please refer to Figure 6 , the electrical connector 140 is disposed on one side of the single board 130 in the thickness direction, and a part of the conductive bracket 120 extends into the housing 110. Along the thickness direction of the single board 130, the electrical connector 140 can be compressed.

[0126] Along the thickness direction of the single board 130, there is a gap between the electrical connector 140 and the housing 110. The electrical connector 140 is an elastic member, so that the size of the gap can change.

[0127] For example, before the conductive bracket 120 is connected to the electrical connector 140, the elastic electrical connector 140 is in a free state, and the size of the gap in the thickness direction of the single board 130 is c1.

[0128] After the conductive bracket 120 is connected to the electrical connector 140, the elastic electrical connector 140 is compressed, and the size of the gap in the thickness direction of the single board 130 is c2, and c2 is less than c1. The elastic electrical connector 140 can prevent the conductive bracket 120 from falling off.

[0129] In addition, the assembly error of the conductive bracket 120 is (c1 - c2), or the assembly error of the conductive bracket 120 can be greater than (c1 - c2).

[0130] In some embodiments of the present application, one end of the electrical connector 140 is connected to the conductive bracket 120. Exemplarily, the conductive bracket 120 is a long strip structure, and one end in the length direction of the electrical connector 140 is connected to the conductive bracket 120. Compared with connecting the electrical connector 140 and the conductive bracket 120 in the middle of the length direction, when the electrical connector 140 and the conductive bracket 120 are connected at one end in the length direction, the antenna can make full use of the electrical length of the conductive bracket 120. It is beneficial to reduce the mechanical length of the conductive bracket 120 and reduce the volume of the network device.

[0131] Wherein, the foregoing conductive bracket 120 being a long strip structure means that the dimension of the conductive bracket 120 in one direction is significantly higher than the dimensions in other directions.

[0132] Exemplarily, the electrical connector 140 and the single board 130 are connected through a solder layer 133. In this way, the connection performance between the single board 130 and the electrical connector 140 is stable.

[0133] In other embodiments, the electrical connector 140 and the single board 130 are connected through an adhesive layer.

[0134] It can be understood that the elastic electrical connector 140 can have various structures, and the embodiments of the present application do not limit this. The following combination Figure 7An exemplary description will be given.

[0135] Figure 7 The following is a schematic structural diagram of an electrical connector 140 provided by an embodiment of the present application. Please refer to Figure 7 , the electrical connector 140 includes a base 141 and a spring piece 142. One end of the spring piece 142 is connected to the base 141, and the other end of the spring piece 142 is elastically connected to a conductive bracket 120 (as shown in Figure 6 ).

[0136] Exemplarily, the base 141 is a sheet-like structure, and the surface of the base 141 away from the spring piece 142 is a plane, and this plane is connected to the single board 130 (as shown in Figure 6 ). In this way, it is beneficial to the stability of the connection between the base 141 and the single board 130. In an embodiment where the electrical connector 140 and the single board 130 are connected through a solder layer, the surface of the base 141 away from the spring piece 142 is convenient for forming a solder layer.

[0137] Exemplarily, the spring piece 142 is bent, and along the thickness direction of the single board 130, the spring piece 142 can expand and contract. For example, after the spring piece 142 is compressed, the spring piece 142 moves in the direction close to the base 141.

[0138] It can be understood that in some embodiments of the present application, the spring piece 142 may not be bent. For example, there is a non-zero included angle between the base 141 and the spring piece 142, and the spring piece 142 can also move closer to or away from the base 141, achieving the purpose of making the electrical connector 140 elastic.

[0139] Figure 7 In the example of, the base 141 and the spring piece 142 are integrally formed. In this way, the strength between the base 141 and the spring piece 142 is relatively high. In some embodiments, the base 141 and the spring piece 142 can be connected through a solder layer.

[0140] In other embodiments of the present application, the electrical connector 140 can be an elastic member with other structures, not limited to the structure shown in Figure 7 . For example, the electrical connector 140 can be a spring.

[0141] In some embodiments of the present application, the electrical connector 140 may not have elastic performance. For example, during the process of assembling the network device 100 (as shown in Figure 3 ), the electrical connector 140 does not deform. Improving the assembly accuracy of the single board 130, the electrical connector 140, the conductive bracket 120 and the housing 110 can also make the network device 100 have excellent performance.

[0142] The material of the electrical connector 140 includes a conductive material, and the conductive material includes, for example, aluminum alloy, stainless steel, titanium, nickel, aluminum or copper, etc.

[0143] In some embodiments, the electrical connector 140 may include an insulating inner lining and a conductive surface layer that surrounds the outer surface of the insulating inner lining. Thus, the electrical connector 140 also has electrical conductivity. In some embodiments, the inside and outside of the electrical connector 140 may be made of a uniform conductive material, which is not limited in the embodiments of the present application.

[0144] Please return Figure 3 , in some embodiments of the present application, the antenna 150 is configured to radiate electromagnetic waves in two frequency bands. In other words, the antenna 150 is a dual-band antenna. Exemplarily, the antenna 150 is configured to radiate electromagnetic waves in a first frequency band, and the antenna 150 is also configured to radiate electromagnetic waves in a second frequency band, where the minimum frequency of the second frequency band is greater than the maximum frequency of the first frequency band.

[0145] Thus, the network device 100 integrates both frequency band antennas on the antenna 150, increasing the integration level of the network device 100, which is beneficial to reducing the volume of the network device 100.

[0146] As described above, in some embodiments of the present application, the network device 100 is a wireless local area network device. Exemplarily, the antenna 150 can be used as a WiFi antenna. Exemplarily, the antenna 150 operates in a frequency band including 2 GHz, and the antenna 150 also operates in a frequency band including 5 GHz. For example, the aforementioned first frequency band is 2.401 GHz (gigahertz) - 2.495 GHz. The second frequency band can be 5.150 GHz - 5.895 GHz.

[0147] Thus, the wireless local area network device has the advantages of high integration level and small volume.

[0148] In the embodiments of the present application, changes in the single board size have little impact on the performance of the antenna 150, which has good universality.

[0149] Figure 8 This is the S-parameter diagram of the network device provided by the embodiments of the present application. Figure 8 It exemplifies the influence of different single board sizes in the network device on the S11 parameter of the antenna. Figure 8 The abscissa of is frequency, with the unit of GHz, and the ordinate is the S11 parameter, with the unit of decibel (dB).

[0150] Figure 8 In, the curve n1 is the S11 parameter curve, and the single board in the network device represented by the curve n1 has a length dimension of 197 mm (millimeters) and a width dimension of 55 mm along the length direction.

[0151] The curve n2 is the S11 parameter curve, and the single board in the network device represented by the curve n2 has a length dimension of 197 mm (millimeters) and a width dimension of 85 mm along the length direction.

[0152] The curve n3 is the S11 parameter curve. The size of the single board in the network device represented by the curve n3 is 197 mm (millimeters) in the length direction and 115 mm in the width direction.

[0153] The above-mentioned length direction is parallel to the extension direction of the conductive bracket. The width direction is parallel to the extension direction of the conductive bracket. For example, Figure 3 in, the length direction of the single board 130 is the x direction, and the width direction of the single board 130 is the y direction.

[0154] From Figure 8 it can be seen that the network devices represented by the curve n1, the curve n2, and the curve n3 resonate both in the 2.45 GHz frequency band and in the 5.5 GHz frequency band.

[0155] The change in the size of the single board has little effect on the change in the performance of the antenna.

[0156] Figure 9 is the antenna pattern of the network device in the 2.45 GHz frequency band. Figure 10 is the antenna pattern of the network device in the 5.5 GHz frequency band. From Figure 9 and Figure 10 it can be seen that the antenna beam of the network device is concentrated, and the standing wave and far field both meet the requirements.

[0157] The network device provided by the embodiment of the present application can improve the performance of the antenna without increasing the overall size of the machine. The antenna standing wave and pattern meet the requirements, and the performance of the antenna does not change with the change of the single board size, which has universality.

[0158] In the description of this specification, specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0159] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any change or replacement within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A network device (100), characterized in that, The network device (100) includes: a housing (110); a single board (130) located within the housing (110); a conductive bracket (120) for supporting the housing (110), the conductive bracket (120) being electrically isolated from the housing (110); and an electrical connector (140), the conductive bracket (120) being electrically connected to the single board (130) through the electrical connector (140); the network device (100) further includes an antenna (150), the antenna (150) including a feeding portion and a radiator, the feeding portion being configured to feed the radiator; the conductive bracket (120) serves as the radiator, and the electrical connector (140) serves as the feeding portion.

2. The network device (100) according to claim 1, characterized in that, The single board (130) includes a conductive layer (132), and the minimum distance from the conductive bracket (120) to the conductive layer (132) is greater than or equal to 2 mm.

3. The network device (100) according to claim 1, characterized in that, The housing (110) is an insulating housing (110).

4. The network device (100) according to claim 1, characterized in that, The housing (110) includes a conductive portion (111), and the minimum distance from the conductive bracket (120) to the conductive portion (111) is greater than or equal to 2 mm.

5. The network device (100) according to any one of claims 1-4, characterized in that, The electrical connector (140) is an elastic member, and the conductive bracket (120) is elastically connected to the single board (130) through the elastic member.

6. The network device (100) according to any one of claims 1-4, characterized in that, The conductive bracket (120) is of a long strip structure, and the electrical connector (140) is electrically connected to one end of the conductive bracket (120) along the length direction of the conductive bracket (120).

7. The network device (100) according to any one of claims 1-4, characterized in that, The network device (100) further includes a solder layer (133), and the electrical connector (140) is connected to the single board (130) through the solder layer (133).

8. The network device (100) according to any one of claims 1-4, characterized in that, The network device (100) further includes: a connector (160), the conductive bracket (120) being connected to the housing (110) through the connector (160).

9. The network device (100) according to claim 8, characterized in that, The connector (160) is a conductive structure, or the connector (160) is an insulating structure.

10. The network device (100) according to any one of claims 1-4, characterized in that, The antenna (150) is configured to radiate electromagnetic waves in a first frequency band, and the antenna (150) is further configured to radiate electromagnetic waves in a second frequency band, the minimum frequency of the second frequency band being greater than the maximum frequency of the first frequency band.

11. The network device (100) according to any one of claims 1-4, characterized in that, The network device (100) is a wireless local area network device.

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